Backwards-compatible tile mappings, tile converters, tile and texture…

… deprecation (#2671)

**Reverts the tile IDs** in `tiles.strf` to ones, compatible with the old tile mappings, before the full tile overhaul. Any old tiles, which do not have a respective new version, are now marked as deprecated.

**Tile converters** can now be used to convert all tiles on all tilemaps in a level, from the editor. Contains two stock tile converters (0.5.x Crystal Tiles, Nightly Tiles -> Present), and a new tile conversions menu (accessible from the main level editor menu). The "Nightly Tiles" converter allows for converting from the current Nightly Builds mapping, to this new, final one. The tiles of the main menu and credits levels are converted in this PR.

Introduces **tile deprecation** and various editor locks to prevent using such tiles, as well as show whether/where such tiles are present in a level.

Additionally introduces **texture deprecation**. Any image files, containing `.deprecated` right before the extension in their filename will be used, whenever the main texture (the one, which doesn't contain the `.deprecated` part in its filename) does not exist, taking its place. Deprecated files do not show up on the file browsing menu.

-----

Huge thanks to [Semphris](https://github.com/Semphriss) for all the initial work on this, including quite a lot of tile re-mapping, organizing the full workflow, as well as the initial process of auto-generating new tile IDs and creating converters, and the implementation of the tile conversion algorithm.

Fixes #2306.

data/images/converters/051_crystal_tiles.sttc

@@ -0,0 +1,201 @@
+2421 -> 4814
+2435 -> 4824
+2449 -> 4834
+2463 -> 4749
+2477 -> 4762
+2491 -> 4844
+2505 -> 4854
+2422 -> 4815
+2436 -> 4825
+2450 -> 4835
+2464 -> 4750
+2478 -> 4763
+2492 -> 4845
+2506 -> 4855
+2423 -> 4724
+2437 -> 4737
+2451 -> 4750
+2465 -> 4750
+2479 -> 4763
+2493 -> 4763
+2507 -> 4776
+2424 -> 4725
+2438 -> 4738
+2452 -> 4751
+2466 -> 4751
+2480 -> 4764
+2494 -> 4764
+2508 -> 4777
+2425 -> 4816
+2439 -> 4826
+2453 -> 4836
+2467 -> 4751
+2481 -> 4764
+2495 -> 4846
+2509 -> 4856
+2426 -> 4817
+2440 -> 4827
+2454 -> 4837
+2468 -> 4752
+2482 -> 4765
+2496 -> 4847
+2510 -> 4857
+2551 -> 0
+2567 -> 0
+2583 -> 4732
+2599 -> 4745
+2615 -> 4758
+2631 -> 4750
+2523 -> 4763
+2539 -> 4771
+2555 -> 4784
+2571 -> 4797
+2587 -> 4810
+2603 -> 0
+2552 -> 4732
+2568 -> 4745
+2584 -> 4758
+2600 -> 4750
+2616 -> 4763
+2632 -> 4750
+2524 -> 4763
+2540 -> 4750
+2556 -> 4763
+2572 -> 4771
+2588 -> 4784
+2604 -> 4797
+2553 -> 4733
+2569 -> 4746
+2585 -> 4759
+2601 -> 4751
+2617 -> 4764
+2633 -> 4751
+2525 -> 4764
+2541 -> 4751
+2557 -> 4764
+2573 -> 4772
+2589 -> 4785
+2605 -> 4798
+2554 -> 0
+2570 -> 0
+2586 -> 4733
+2602 -> 4746
+2618 -> 4759
+2634 -> 4751
+2526 -> 4764
+2542 -> 4772
+2558 -> 4785
+2574 -> 4798
+2590 -> 4811
+2606 -> 0
+2417 -> 0
+2431 -> 4734
+2445 -> 4747
+2459 -> 4750
+2527 -> 4763
+2543 -> 4760
+2559 -> 4773
+2575 -> 4786
+2418 -> 4734
+2432 -> 4747
+2446 -> 4750
+2460 -> 4750
+2528 -> 4763
+2544 -> 4763
+2560 -> 4760
+2576 -> 4773
+2419 -> 4735
+2433 -> 4748
+2447 -> 4751
+2461 -> 4751
+2529 -> 4764
+2545 -> 4764
+2561 -> 4761
+2577 -> 4774
+2420 -> 0
+2434 -> 4735
+2448 -> 4748
+2462 -> 4751
+2530 -> 4764
+2546 -> 4761
+2562 -> 4774
+2578 -> 4787
+2473 -> 0
+2487 -> 4728
+2501 -> 4741
+2515 -> 4750
+2531 -> 4763
+2547 -> 4754
+2563 -> 4767
+2474 -> 0
+2488 -> 4729
+2502 -> 4742
+2516 -> 4750
+2532 -> 4763
+2548 -> 4755
+2564 -> 4768
+2475 -> 0
+2489 -> 4730
+2503 -> 4743
+2517 -> 4751
+2533 -> 4764
+2549 -> 4756
+2565 -> 4769
+2476 -> 0
+2490 -> 4731
+2504 -> 4744
+2518 -> 4751
+2534 -> 4764
+2550 -> 4757
+2566 -> 4770
+2413 -> 4762
+2427 -> 4727
+2441 -> 4750
+2455 -> 4750
+2469 -> 4763
+2483 -> 4740
+2497 -> 4749
+2511 -> 4762
+2414 -> 4750
+2428 -> 4750
+2442 -> 4763
+2456 -> 4750
+2470 -> 4763
+2484 -> 4750
+2498 -> 4763
+2512 -> 4763
+2415 -> 4751
+2429 -> 4751
+2443 -> 4764
+2457 -> 4751
+2471 -> 4764
+2485 -> 4751
+2499 -> 4764
+2513 -> 4764
+2416 -> 4752
+2430 -> 4765
+2444 -> 4753
+2458 -> 4751
+2472 -> 4764
+2486 -> 4766
+2500 -> 4752
+2514 -> 4765
+2647 -> 4895
+2651 -> 4901
+2655 -> 4894
+2659 -> 4900
+2663 -> 4897
+2666 -> 4903
+2648 -> 4909
+2652 -> 4915
+2656 -> 4896
+2660 -> 4902
+2664 -> 4898
+2667 -> 4904
+2657 -> 4906
+2661 -> 4912
+2665 -> 4899
+2668 -> 4905
+2658 -> 4907
+2662 -> 4913
+

data/images/converters/data.stcd

@@ -0,0 +1,10 @@
+(supertux-converter-data
+  (nightly_all_tiles.sttc
+    (title (_ "Nightly Tiles"))
+    (description (_ "Levels, created in previous Nightly builds, have their tiles broken. Use this converter to restore all tiles in the level to their proper state!"))
+  )
+  (051_crystal_tiles.sttc
+    (title (_ "0.5.x Crystal Tiles"))
+    (description (_ "Levels, created in pre-0.6.3 versions, which use crystal tiles, have their crystal tiles broken. Use this converter to restore all crystal tiles in the level to their proper state!"))
+  )
+)